The NFL sued rapper M.I.A. for 100% of her earnings for life (if she ever earned over $2 million) because she flipped everyone off during the 2012 Super Bowl halftime show. The lawsuit was later settled for an undisclosed sum. – WTF Fun Facts
Source: The NFL Once Sued Rapper M.I.A. for Over $16 Million Because of a Lewd Gesture (sportscasting.com)
A disgruntled businessman in Vermont, who was upset with the local officials for denying a building permit for his proposed business, got revenge by building a giant, illuminated middle finger statue on his property at a cost of ~$4,000. – WTF Fun Facts
Source: https://www.boston.com/news/local-news/2018/12/10/middle-finger-sculpture-westford-vermont
The middle finger has been used as a derogatory gesture for at least 2400 years, appearing in ancient Greek and Roman texts. Its usage in the US is documented as early as 1886 and was likely brought over by Italian immigrants. – WTF Fun Facts
Source: https://www.bbc.co.uk/news/magazine-16916263